Television and electronic apparatus

ABSTRACT

According to one embodiment, an electronic apparatus includes a housing, a heat sink in the housing, a heat pipe including a curved portion toward the heat sink, and a fan including a cutout portion accommodating the curved portion.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is based upon and claims the benefit of priority fromJapanese Patent Application No. 2010-249146, filed Nov. 5, 2010; theentire contents of which are incorporated herein by reference.

FIELD

Embodiments described herein relate generally to a television includinga cooling module, and an electronic apparatus including a coolingmodule.

BACKGROUND

There are many televisions and electronic apparatuses that include acooling module.

BRIEF DESCRIPTION OF THE DRAWINGS

A general architecture that implements the various features of theembodiments will now be described with reference to the drawings. Thedrawings and the associated descriptions are provided to illustrate theembodiments and not to limit the scope of the invention.

FIG. 1 is an exemplary front view of a television according to a firstembodiment;

FIG. 2 is an exemplary plan view showing a circuit board and a coolingmodule of the first embodiment;

FIG. 3 is an exemplary perspective view of a fan shown in FIG. 2;

FIG. 4 is an exemplary side view of the fan shown in FIG. 2;

FIG. 5 is an exemplary plan view of the fan shown in FIG. 2;

FIG. 6 is an exemplary plan view of heat pipes and a heat sink shown inFIG. 2;

FIG. 7 is an exemplary perspective view which shows the heat sink, asecond heat pipe, and a bracket, and in which a first heat pipe isremoved from the structure shown in the FIG. 6;

FIG. 8 is an exemplary plan view of the cooling module shown in FIG. 2;

FIG. 9 is an exemplary cross-sectional view of the cooling module shownin FIG. 8 taken along a line F9-F9;

FIG. 10 is an exemplary cross-sectional view of the cooling module shownin FIG. 9 taken along a line F10-F10;

FIG. 11 is an exemplary perspective view of a cover according to asecond embodiment;

FIG. 12 is an exemplary side view of a cooling module of the secondembodiment; and

FIG. 13 is an exemplary perspective view of an electronic apparatusaccording to a third embodiment.

DETAILED DESCRIPTION

Various embodiments will be described hereinafter with reference to theaccompanying drawings.

In general, according to one embodiment, an electronic apparatuscomprises a housing, a heat sink in the housing, a heat pipe comprisinga curved portion toward the heat sink, and a fan comprising a cutoutportion accommodating the curved portion.

Embodiments will be described below with reference to the drawings.

First Embodiment

FIGS. 1 to 10 show a television 1 according to a first embodiment. Thetelevision 1 includes a housing 5. The housing 5 accommodates a circuitboard 14 shown in FIG. 2. The circuit board 14 is, for example, a maincircuit board. The circuit board 14 has a first surface 14 a and asecond surface (not shown) on the opposite side of the first surface 14a.

First and second heat generating components 15 and 16 are mounted on,for example, the second surface of the circuit board 14. An example ofthe first heat generating component 15 is a graphic chip. An example ofthe second heat generating component 16 is a central processing unit(CPU). The amount of heat generated by the second heat generatingcomponent 16 is larger than that generated by the first heat generatingcomponent 15. Meanwhile, the first and second heat generating components15 and 16 are not limited to the above-mentioned examples, andappropriately correspond to various electronic components expected toradiate heat.

As shown in FIG. 2, the television 1 is provided with a cooling module20. The cooling module 20 includes a fan 21, a heat sink 22, first andsecond heat pipes 23 and 24, and a bracket 25. The bracket 25 is anexample of a “holder.”

The circuit board 14 includes a cutout portion 14 c that is to avoid thefan 21 and the heat sink 22. The cutout portion 14 c is formed so as tosubstantially correspond to the outward appearance of the fan 21 and theheat sink 22. The fan 21 and the heat sink 22 are in the cutout portion14 c of the circuit board 14, and are arranged with the circuit board14. The end surfaces of the fan 21 and the heat sink 22 aresubstantially flush with, for example, the first surface 14 a of thecircuit board 14.

As shown in FIGS. 3 to 5, the fan 21 includes a fan case 27 and animpeller 28 that rotates in the fan case 27. The fan case 27 includessuction ports 31 and a discharge port 33. Air in the housing 5 issupplied into the fan case 27 through the suction ports 31. Thedischarge port 33 faces the heat sink 22. Air is discharged to the heatsink 22 from the discharge port 33.

The structure of the fan 21 will be described below. The fan case 27includes a first flat plate portion 35, a second flat plate portion 36,and a peripheral wall portion 37. The first and second flat plateportions 35 and 36 are formed of metal plates, respectively, and havethe same shape. The first and second flat plate portions 35 and 36 aredivided above and below the impeller 28, and face the impeller 28 in theaxial direction of the impeller 28, that is, in the axial direction of arotating shaft of the impeller 28. Meanwhile, in this specification,upper and lower sides of the cooling module 20 are defined on the basisof a horizontal posture of the fan 21.

The first flat plate portion 35 is above the impeller 28, and forms atop plate of the fan case 27. The second flat plate portion 36 is belowthe impeller 28, and forms a bottom plate of the fan case 27. Thesuction ports 31 are formed at the first and second flat plate portions35 and 36, respectively. As described below, the second flat plateportion 36 faces the bracket 25.

The peripheral wall portion 37 is a wall portion standing between thefirst and second flat plate portions 35 and 36, and is attached to thefirst and second flat plate portions 35 and 36 by, for example, weldingor the like. The peripheral wall portion 37 is made of a syntheticresin. The peripheral wall portion 37 is formed along the periphery ofthe impeller 28. The peripheral wall portion 37 surrounds the impeller28 in a U shape in the radial direction of the impeller 28, that is, inthe radial direction of the rotating shaft of the impeller 28. That is,the peripheral wall portion 37 surrounds the impeller 28 in threedirections except for the direction where the discharge port 33 isopened.

In detail, the peripheral wall portion 37 includes a first side wallportion 41 (first wall portion), a second side wall portion 42 (secondwall portion), and a curved wall portion 43 (third wall portion). Thefirst and second side wall portions 41 and 42 are divided on both sidesof the discharge port 33. The first and second side wall portions 41 and42 extend substantially linearly toward the discharge port 33 from thesides of the impeller 28, respectively.

The first and second side wall portions 41 and 42 are adjacent to thedischarge port 33. That is, the first and second side wall portions 41and 42 define the discharge port 33 in cooperation with the first andsecond flat plate portions 35 and 36. The curved wall portion 43 is onthe side opposite to the discharge port 33, and connects the end portionof the first side wall portion 41 to the end portion of the second sidewall portion 42 in a circular arc shape.

The first side wall portion 41 is more distant from the rotation centerof the impeller 28 than the second side wall portion 42 is. That is, agap between the first side wall portion 41 and the impeller 28 is largerthan a gap between the second side wall portion 42 and the impeller 28.

As shown in FIGS. 3, 4, and 5, a cutout portion 45 is formed at the fancase 27 of this embodiment. The cutout portion 45 is formed at the endportion (tip portion) of the first side wall portion 41 so as to beadjacent to the discharge port 33. That is, the cutout portion 45 isconnected to the discharge port 33. The cutout portion 45 is larger thanthe thickness of the first heat pipe 23. The cutout portion 45 and thedischarge port 33, in this order, are arranged in the rotationaldirection of the impeller 28.

The end portion (lower end portion) of the first side wall portion 41facing the second flat plate portion 36 is cut out, so that the cutoutportion 45 is formed between the first side wall portion 41 and thesecond flat plate portion 36. That is, the cutout portion 45 is definedbetween the second flat plate portion 36 and the L-shaped end portion ofthe first side wall portion 41.

As shown in FIGS. 3, 4, and 5, a recessed portion 46 (e.g., slope) isformed at the first side wall portion 41. The cutout portion 45 islocated between the recessed portion 46 and the discharge port 33. Thefirst side wall portion 41 includes a flat portion 47 away from therecessed portion 46. The recessed portion 46 is recessed from the flatportion 47 toward the inside of the fan case 27.

That is, there is a difference in the level between the surface of theflat portion 47 and the surface of the recessed portion 46. The surfaceof the recessed portion 46 is inclined so as to be recessed more greatlytoward the inside of the fan case 27 as approaching the cutout portion45. Meanwhile, the inner surface of the recessed portion 46, that is,the surface of the recessed portion exposed to the inside of the fancase 27 is continuously connected to the inner surface of the flatportion 47, and there is no difference in the level between the innersurface of the recessed portion and the inner surface of the flatportion. The first heat pipe 23 extends along the recessed portion 46.That is, the recessed portion 46 faces the first heat pipe 23.

As shown in FIGS. 6 and 7, the heat sink 22 is a fin unit where aplurality of fins 51 is arranged. The width of the heat sink 22 issubstantially equal to that of the fan 21. That is, the heat sink 22 islarger than the discharge port 33 of the fan 21 and covers substantiallythe entire discharge port 33. The heat sink 22 is disposed so thatlittle or no gap is left between the discharge port 33 of the fan 21 andthe heat sink.

Each of the fins 51 is formed in a U shape. Since the plurality of fins51 is arranged, a recessed portion 52 facing the discharge port 33 ofthe fan 21 is formed at the heat sink 22. The recessed portion 52 isformed over substantially the entire length of the heat sink 22, and isopened toward the discharge port 33. The depth of the recessed portion52 in the direction from the fan 21 to the heat sink 22 is larger thanthe sum of the widths of the first and second heat pipes 23 and 24. Thefirst and second heat pipes 23 and 24 are accommodated in the recessedportion 52.

As shown in FIG. 8, the first and second heat pipes 23 and 24 aresubstantially parallel to each other. Each of the first and second heatpipes 23 and 24 is crushed in the thickness direction of the fan 21 andhas a flat cross-section.

The first heat pipe 23 is between the first heat generating component 15and the heat sink 22. The first heat pipe 23 extends so as to passthrough the gap between the fan 21 and the second heat generatingcomponent 16. In detail, the first heat pipe 23 includes a heatreceiving portion 23 a, a heat radiating portion 23 b, a first linearportion 23 c, a second linear portion 23 d, and a curved portion 23 e.The heat receiving portion 23 a faces the first heat generatingcomponent 15, and is thermally connected to the first heat generatingcomponent 15 by, for example, a heat receiving plate 54 or the like. Theheat receiving portion 23 a is configured to receive heat from the firstheat generating component 15.

The heat radiating portion 23 b is accommodated in the recessed portion52 of the heat sink 22, and is fixed to the heat sink 22. The heatradiating portion 23 b is thermally connected to the heat sink 22, andis configured to radiate heat from the first heat generating component15 to the heat sink 22. The surface of the heat radiating portion 23 bfacing the fan 21 is substantially flush with the surface of the heatsink 22 facing the fan 21. The surface of the heat sink is a mainsurface portion 55 to be described below.

The first and second linear portions 23 c and 23 d extend along the fan21. In detail, the first linear portion 23 c is adjacent to the heatreceiving portion 23 a and extends from the heat receiving portion 23 atoward the side of the fan 21. The first linear portion 23 c extendswhile slightly inclined with respect to the fan 21 so as to be away fromthe fan 21 as approaching the heat sink 22.

The second linear portion 23 d is connected to the first linear portion23 c, and extends from the first linear portion 23 c to the side of therecessed portion 46 of the first side wall portion 41. The second linearportion 23 d is slightly bent from the first linear portion 23 c, andextends while slightly inclined with respect to the fan 21 so as toapproach the fan 21 as approaching the heat sink 22.

As shown in FIG. 8, the curved portion 23 e is at a part of the portionbetween the heat receiving portion 23 a and the heat radiating portion23 b, for example. The curved portion 23 e is between the second linearportion 23 d and the heat radiating portion 23 b. The curved portion 23e is bent from the side of the fan 21 toward the heat sink 22 in acircular arc shape. The curved portion 23 e is inserted into the cutoutportion 45 of the fan case 27 in the bending direction thereof, that is,toward the inside of the circular arc.

Accordingly, as shown in FIG. 8, at least a part of the curved portion23 e of the heat pipe 23 extends in the fan case 27. At least a part ofthe heat pipe 23 is inserted into the recessed portion 52 of the heatsink 22 and connected to the heat sink 22 at a position closer than thefirst side wall portion 41 to the center portion of the heat sink 22.

That is, the heat sink 22 includes a main surface portion 55 that facesthe discharge port 33 of the fan 21 and an end portion 56 that is theend portion of the heat sink 22 in the longitudinal direction of theheat sink. At least a part of the first heat pipe 23 is not insertedinto the heat sink 22 from the end portion 56 but is inserted into theheat sink 22 from the main surface portion 55.

The second heat pipe 24 is on the side of the first heat pipe 23opposite to the fan 21. The second heat pipe 24 is between the secondheat generating component 16 and the heat sink 22. In detail, the secondheat pipe 24 includes a heat receiving portion 24 a, a heat radiatingportion 24 b, a first curved portion 24 c, and a second curved portion24 d. The heat receiving portion 24 a faces the second heat generatingcomponent 16, and is thermally connected to the second heat generatingcomponent 16 by, for example, a heat receiving plate 57 or the like. Theheat receiving portion 24 a is configured to receive heat from thesecond heat generating component 16.

The heat radiating portion 24 b is accommodated in the recessed portion52 of the heat sink 22, and is fixed to the heat sink 22. The heatradiating portion 24 b is thermally connected to the heat sink 22, andis configured to radiate heat from the second heat generating component16 to the heat sink 22.

The first curved portion 24 c is adjacent to the heat receiving portion24 a and is bent in a circular arc shape in a direction to avoid the fan21. The second curved portion 24 d is between the first curved portion24 c and the heat radiating portion 24 b, and is bent substantiallyparallel to the curved portion 23 e of the first heat pipe 23. That is,the second curved portion 24 d is bent in a circular arc shape towardthe heat sink 22.

The second heat pipe 24 has a larger diameter than the first heat pipe23, and has a higher heat transport capacity than the first heat pipe.For this reason, the second heat pipe 24 cannot be bent at a smallradius of curvature like the first heat pipe 23, and is bent with aradius of curvature larger than that of the first heat pipe 23.

In other words, the two heat pipes 23 and 24 are in parallel. The firstheat pipe 23 is between the second heat pipe 24 and the fan 21, and isbent with a radius of curvature smaller than that of the second heatpipe 24. That is, the heat pipe 23 corresponding to the inside (i.e.,fan side) is bent with a radius of curvature smaller than that of theheat pipe 24 corresponding to the outside.

As shown in FIGS. 6, 7, and 8, the bracket 25 is fixed to the heat sink22. The fan 21 is mounted on the bracket by, for example, screwing orthe like. The bracket 25 integrally holds the heat sink 22 and the fan21. The bracket 25 is made of metal. The bracket 25 includes a mountingportion 61 and a cover portion 62. The mounting portion 61 is in theshape of a flat plate so as to be substantially parallel to the secondflat plate portion 36 of the fan 21. The mounting portion 61 extendsfrom the lower side of the bracket 25 to the lower side of the fan 21,and the fan 21 is mounted on the mounting portion 61.

FIG. 7 shows the heat sink 22, the second heat pipe 24, and the bracket25 when the first heat pipe 23 is removed, for convenience of thedescription. As shown in FIG. 7, the cover portion 62 is at the side endportion of the mounting portion 61. The cover portion 62 stands from themounting portion 61.

As shown in FIGS. 9 and 10, the cover portion 62 stands beside the fan21 and extends from the side of the heat sink 22 to the side of the fan21. The cover portion 62 includes a first portion 62 a that faces thefirst side wall portion 41 of the fan 21 and a second portion 62 b thatfaces the end portion 56 of the heat sink 22.

As shown in FIG. 9, the cover portion 62 comes into contact with thefirst and second heat pipes 23 and 24 from below. The first portion 62 aof the cover portion 62 is below the first heat pipe 23 and supports thefirst heat pipe 23. The second portion 62 b of the cover portion 62 isbelow the second heat pipe 24 and supports the second heat pipe 24.

As shown in FIGS. 9 and 10, the cover portion 62 covers at least a partof the cutout portion 45 from the outside of the fan 21. In detail, thefirst portion 62 a of the cover portion 62 covers a gap between thefirst heat pipe 23 and the second flat plate portion 36. In other words,the end portion of the first side wall portion 41, which is any one ofthe end portion (upper end portion) of the first side wall portion 41facing the first flat plate portion 35 and the end portion (lower endportion) of the first side wall portion facing the second flat plateportion 36 and covered with the cover portion 62, comprises the cutoutportion 45.

As shown in FIGS. 9 and 10, the end portion of the cover portion 62extends over the cutout portion 45 and faces the recessed portion 46 ofthe first side wall portion 41. That is, the cutout portion 45 iscovered with the cover portion 62 beyond the entire length of the cutoutportion in a direction from the fan 21 to the heat sink 22.

According to this structure, it may be possible to achieve high densitymounting. That is, the minimum radius of curvature of a heat pipe isgenerally determined depending on the diameter of the heat pipe. Forthis reason, even though the heat pipe is bent from a portion of theheat pipe extending in the outside of the heat sink, a gap isnecessarily left between the heat pipe and the fan. This gap hindershigh density mounting.

Meanwhile, the cutout portion 45 into which the curved portion 23 e ofthe heat pipe 23 is inserted is formed at the fan 21 in this embodiment.Accordingly, it may be possible to bend the heat pipe 23 from theportion of the heat pipe that overlaps the fan 21. Therefore, it may bepossible to reduce the gap between the heat pipe 23 and the fan 21. Thatis, it may be possible to dispose the heat pipe 23 at a position closerto the fan 21, to reduce the size of the cooling module 20, and toachieve high density mounting.

In this embodiment, the bracket 25, which is attached to the heat sink22 and holds the fan 21, includes the cover portion 62 that covers atleast a part of the cutout portion 45 of the fan case 27. Accordingly,the leakage of air from the cutout portion 45 is suppressed. That is,the decrease in cooling efficiency, which is caused by the cutoutportion 45, is suppressed by the bracket 25 that holds the fan 21.

In this embodiment, the fan case 27 includes the recessed portion 46 atthe first side wall portion 41. If the recessed portion 46 is notformed, a large cutout portion 45 needs to be formed in consideration ofcomponent tolerance or the like in order to avoid the contact betweenthe heat pipe 23 and the fan 21. However, since the recessed portion 46of this embodiment is formed, it may be possible to more reduce the sizeof the cutout portion 45 while reducing a possibility that the heat pipe23 and the fan 21 come into contact with each other. If the size of thecutout portion 45 can be reduced, the leakage of air is reduced. As aresult, it may be possible to improve cooling efficiency.

Further, if the surface of the recessed portion 46 is inclined so as tobe recessed more greatly toward the inside of the fan case 27 asapproaching the cutout portion 45, it may be possible to further reducethe size of the cutout portion 45 while reducing the possibility thatthe heat pipe 23 and the fan 21 come into contact with each other.

In this embodiment, the fan case 27 includes the flat plate portion 36and the peripheral wall portion 37 attached to the flat plate portion36. The end portion of the peripheral wall portion 37 facing the flatplate portion 36 is cut out, so that the cutout portion 45 is formedbetween the peripheral wall portion 37 and the flat plate portion 36.According to this structure, it is easy to secure the stiffness of theperipheral wall portion 37 of the fan case 27 and to further easily formthe peripheral wall portion as compared to the case where the cutoutportion 45 is formed in the middle of the peripheral wall portion 37.

In this embodiment, the cutout portion 45 and the discharge port 33 arearranged in the rotational direction of the impeller 28 in this order.According to this, since it may be possible to blow a large amount ofair toward the heat pipe 23 inserted into the cutout portion 45, coolingefficiency is improved. Further, in order to discharge a larger amountof air, a space between the first side wall portion 41 and the impeller28 is larger than a space between the second side wall portion 42 andthe impeller 28. That is, it is relatively easy to secure a space,through which the heat pipe 23 passes, near the first side wall portion41 in the fan case 27.

In this embodiment, the recessed portion 52, which faces the dischargeport 33 of the fan 21 and into which the heat pipe 23 is inserted, isformed at the heat sink 22. According to this, it is easy to connect theheat pipe 23, which extends in the fan case 27, to the heat sink 22 atthe position closer to the center portion of the heat sink 22 than thefirst side wall portion 41.

In this embodiment, the cover portion 62 includes a portion (firstportion 62 a) facing the first side wall portion 41 of the fan 21, andthe portion comes into contact with the heat pipe 23 and supports theheat pipe 23. According to this, the heat pipe 23 is supported by thebracket 25 not only at the side of the heat sink 22 but also at the sideof the fan 21. Accordingly, the stiffness of the entire cooling module20 is improved.

In this embodiment, the first heat pipe 23 is between the second heatpipe 24 and the fan 21 and is bent with a radius of curvature smallerthan that of the heat pipe 24. According to this, it may be possible toput the plurality of heat pipes 23 and 24 in a smaller mounting area.

Second Embodiment

Next, a television 1 according to a second embodiment will be describedwith reference to FIGS. 11 and 12. Meanwhile, structures having thefunctions, which are the same as or similar to the functions of thestructures of the first embodiment, are denoted by the same referencenumerals and the description thereof will be omitted. Further, otherstructures than the structures to be described below are the same asthose of the first embodiment.

FIG. 11 shows a cover 71 of this embodiment. The cover 71 is formed of,for example, sponge, rubber, a film member, or the like, and haselasticity or flexibility. A slit 71 a is formed, for example, in thecenter portion of the cover 71.

FIG. 12 shows the mounting structure of the cover 71 on a cooling module20. Meanwhile, for convenience of the description, the cover 71 ishatched in FIG. 12. The first heat pipe 23 is inserted into the slit 71a as shown in FIG. 12, so that the cover 71 is attached to the fan 21 orthe bracket 25. That is, the slit 71 a is opened so as to follow theouter shape of the first heat pipe 23, so that the cover 71 comes intoclose contact with the first heat pipe 23.

The cover 71 covers at least a part of the cutout portion 45. The cover71 covers, for example, a gap between the first heat pipe 23 and thefirst side wall portion 41, which is formed at an upper portion of thefirst heat pipe 23, and a gap between the first heat pipe 23 and therecessed portion 46.

According to this structure, it may be possible to achieve high densitymounting as in the first embodiment. Further, it may be possible toimprove cooling efficiency in this embodiment. That is, a cutout portion45, which is larger than the heat pipe 23, is formed in consideration ofcomponent tolerance or the like in order to avoid the contact betweenthe heat pipe 23 and the fan 21. For this reason, there is a possibilitythat air leaks from the cutout portion 45. However, if the cover 71 ofthis embodiment is provided, the leakage of air from the cutout portion45 is reduced. As a result, it may be possible to improve coolingefficiency.

Third Embodiment

Next, an electronic apparatus 81 according to a third embodiment will bedescribed with reference to FIG. 13. Meanwhile, structures having thefunctions, which are the same as or similar to the functions of thestructures of the first embodiment, are denoted by the same referencenumerals and the description thereof will be omitted. Further, otherstructures than the structures to be described below are the same asthose of the first embodiment.

As shown in FIG. 13, the electronic apparatus 81 is, for example, anotebook type personal computer. Meanwhile, an electronic apparatus towhich this embodiment may be applied is not limited to theabove-mentioned apparatus. This embodiment may be widely applied tovarious electronic apparatuses that include, for example, arecording/reproducing apparatus, a PDA (Personal Digital Assistant), anda game console.

As shown in FIG. 13, the electronic apparatus 81 includes a main bodyunit 2, a display unit 3, and a hinge 4. The main body unit 2 is a mainbody of the electronic apparatus where a main board is mounted. The mainbody unit 2 includes a housing 5. The housing 5 includes an upper wall6, a lower wall 7, and a peripheral wall 8, and is formed in the shapeof a flat box.

When the electronic apparatus 81 is placed on a desk, the lower wall 7faces the upper surface of the desk. The lower wall 7 is substantiallyparallel to the upper surface. The upper wall 6 extends so as to besubstantially parallel to the lower wall 7 (that is, so as to besubstantially horizontal) with a space therebetween. A keyboard 9 ismounted on the upper wall 6. The peripheral wall 8 stands from the lowerwall 7, and connects the peripheral edge portion of the lower wall 7 tothe peripheral edge portion of the upper wall 6.

The display unit 3 is pivotally (openably and closably) connected to therear end portion of the main body unit 2 by the hinge 4. The displayunit 3 can pivot between a closed position where the display unit fallsso as to cover the main body unit 2 from above and an open positionwhere the display unit is raised from the main body unit 2.

As shown in FIG. 13, the display unit 3 includes a display housing 11and a display panel 12 in the display housing 11. A display screen 12 aof the display panel 12 is exposed to the outside through an opening 11a formed at the front wall of the display housing 11.

The housing 5 of the main body unit 2 accommodates the circuit board 14shown in FIG. 2. The circuit board 14 is, for example, a main circuitboard. The circuit board 14 has a first surface 14 a corresponding to,for example, an upper surface and a second surface (not shown)positioned on the side opposite to the first surface 14 a andcorresponding to, for example, a lower surface.

The housing 5 of the electronic apparatus 81 further accommodates acooling module 20. The cooling module 20 is the same as the coolingmodule of the first embodiment. That is, the cooling module 20 includesa fan 21, a heat sink 22, first and second heat pipes 23 and 24, and abracket 25. A fan case 27 of the fan 21 includes a cutout portion 45into which a curved portion 23 e of the first heat pipe 23 is inserted.

According to this structure, it may be possible to achieve high densitymounting as in the first embodiment. Further, the cooling module 20according to this embodiment may be provided with the same cover 71 asthe cover of the second embodiment.

Meanwhile, the embodiments are not limited to the above-mentionedembodiments, and may be embodied with the modifications of componentswithout departing from the scope of the invention when being embodied.Further, it may be possible to make various inventions by theappropriate combination of a plurality of components disclosed in theabove-mentioned embodiments. For example, some components may be removedfrom all the components disclosed in the above-mentioned embodiments.Furthermore, components of different embodiments may be appropriatelycombined with each other.

For example, the heat pipe 23 does not necessarily need to be connectedto the heat sink 22 at a position closer than the first side wallportion 41 to the center portion of the heat sink 22. If the cutoutportion 45 is only formed at the fan case 27 and the heat pipe 23 isonly inserted into the cutout portion 45, it may be possible to reducethe size of the cooling module 20 and to achieve high density mounting.The bracket 25 is not an indispensable component and may be omitted.

The recessed portion 46 may not be formed at the first side wall portion41. The cutout portion 45 may not be formed at the end portion of thefirst side wall portion facing the flat plate portion 36 and may beformed at the center portion of the first side wall portion 41. Thecutout portion 45 may be formed at the second side wall portion 42instead of the first side wall portion 41. The cover portion 62 of thebracket 25 may not support the heat pipes 23 and 24. The second heatpipe 24 is not an indispensable component and may be omitted.

While certain embodiments have been described, these embodiments havebeen presented by way of example only, and are not intended to limit thescope of the inventions. Indeed, the novel embodiments described hereinmay be embodied in a variety of other forms; furthermore, variousomissions, substitutions and changes in the form of the embodimentsdescribed herein may be made without departing from the spirit of theinventions. The accompanying claims and their equivalents are intendedto cover such forms or modifications as would fall within the scope andspirit of the inventions.

1. A television comprising: a housing; a heat generating component inthe housing; a heat sink; a fan comprising a discharge port facing theheat sink and a cutout portion adjacent to the discharge port; a firstheat pipe comprising: a heat receiving portion configured to receiveheat from the heat generating component; a heat radiating portionconfigured to radiate heat to the heat sink; and a curved portion curvedtoward the heat sink, and positioned in the cutout portion and betweenthe heat receiving portion and the heat radiating portion, wherein atleast a part of the first heat pipe is in the fan; and a holdercomprising a mounting portion attached to the heat sink, and a coverportion covering at least a part of the cutout portion.
 2. Thetelevision of claim 1, wherein the fan comprises a wall portion, thewall portion comprising the cutout portion and a recessed portion on anouter surface of the wall portion, the cutout portion between thedischarge port and the recessed portion, and the first heat pipe extendsalong the recessed portion.
 3. The television of claim 2, wherein therecessed portion is inclined so as to be recessed more greatly in thedirection of the cutout portion.
 4. The television of claim 1, whereinthe fan further comprises a fan case and an impeller, the fan casecomprises a flat portion facing the holder, and a peripheral wallportion surrounding the impeller in a radial direction of the impeller,and the cutout portion is between the flat portion and an end portion ofthe peripheral wall portion facing the flat portion.
 5. The televisionof claim 4, wherein the cutout portion precedes the discharge port in arotational direction of the impeller.
 6. The television of claim 1,wherein the heat sink comprises a recessed portion which faces thedischarge port and accommodates the heat radiating portion of the firstheat pipe.
 7. The television of claim 1, wherein the cover portioncomprises a portion touching the first heat pipe in order to support thefirst heat pipe.
 8. The television of claim 1, further comprising: asecond heat pipe attached to the heat sink, wherein the first heat pipeis between the second heat pipe and the fan, and the first heat pipe iscurved with a radius of curvature smaller than that of the second heatpipe.
 9. The television of claim 1, further comprising: a cover attachedto the fan or the holder, the cover covering at least a part of thecutout portion.
 10. An electronic apparatus comprising: a housing; aheat sink in the housing; a heat pipe comprising a curved portion, thecurved portion curved toward the heat sink; and a fan comprising acutout portion, the curved portion in the cutout portion.
 11. Theelectronic apparatus of claim 10, further comprising: a holder attachedto the heat sink, the holder covering at least a part of the cutoutportion.